Road-drag.



O. G. LUTHER.

ROAD DRAG.

APPLICATION rum) MAYQO, 1013.

1, l 1 6,305. Patented Nov. 3, 1914.

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O. G. LUTHER.

ROAD DRAG.

APPLICATION FILED MAY29,1913.

1,1 16,305; Patented Nov. 3, 1914.

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v UNITED. STATES PATENT. OFFICE.

OTTO C. LUTHER, OF ANAIVIOOSE, NORTH DAKOTA, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, 0F ONE-SEVENTH T0 MARTIN HUBLOU, ONE-SEVENTH TODANIEL J. MURPHY, ONE-SEVENTH T0 WILLIAM H. CHAIEK, ONE-SEVENTH TOMATTHEW R. FRITZ, ONE-SEVENTH TO PAUL F. BIBOVI, AND ONE-SEVENTH TOCONRAD MARTIN AND ONE-SEVENTH TO I. J. FUNKE, BOTH 0F ANAMOOSE, NORTHDAKOTA.

ROAD-DRAG.

Specification of Letters Patent.

Patented Nov. 3, 1914.

Application filed May 29, 1913. Serial No. 770,594.

To all whom it may concern:

Be it known that I, O'r'ro O. LUTHER, a citizen of the United States,residing at in the county of McI-Ienry and State of North Dakota, haveinvented new and useful Improvements in Road-Drags, of which thefollowing is a specification.

This invention relates to road drags, and has for its object to provideimproved construction in the frame work of such devices, and in theadjusting means for regulating the function thereof, and to enableimproved results therewith in various ways, as will subsequently appear.

WVhile it is generally agreed that roads should possess a certain slopetoward the It is therefore an important object of this invention toenable my device to accommodate itself to the requirements of the roadwith respect to the various inclinations which may be encountered.

It is also an important object to enable the operation of the device tomove the material engaged by the drag either toward the center of theroad for its conservation, or toward the side, to facilitate itsremoval.

Under certain conditions it is found desirable in repairing or treatinga road surface to chisel up a portion in order to enable its readydistribution, while at others it is more desirable to simply drag thesurface, or both functions may be required at one time.

It is therefore a further important object to enable my device to meetthese requirements without complication of construction, and by the useof simple adjustment of the machine which will be operable at will.

A further object is to provide improved draft connections with suchdevices.

An additional object is to provide means for connecting the units of thedevice so that it may be used for treatment of the entire width of asingle track road in one operation, or may be arranged to operate on oneside of a wide thoroughfare, as found desirable.

Additional objects and advantages will appear, some of which will beapparent from the following description and from the drawings in which,

Figure 1, 1s a top view of the invention Fig. 2 is a top view showingthe modified connection of the units. Fig. 3, is a rear view, Fig. 1 isa sectional view showing adjustment of the plates.

There is illustrated a drag comprising two similar unit sections 10,each comprising scraper plates 11, connected pivotally at their innersides to the frame work 12 and arranged in parallel and diagonally withrespect to the axis of the shaft, as will be understood. The plates 11may be formed in any suitable manner, and preferably have sharpened roadengaging edges, adjacent the front side of the plates. find it best tomake these plates about five feet in length, although this proportionmay be varied as required. The two sections or units are connectedloosely to a central heavy draw bar 14, suitably for verticaloscillation relatively, to such degree as necessary to allow the twounits to conform to the slope of the road surfaces engaged respectively.At the outer sides of the units there are located secondary draw bars15.

The frame 12 comprises two angle pieces element having oppositelyextending fore and In practice I aft apertured segments 21 concentric toa line to the adjacent forward or rear end of. the arms of the frame 12as the case may be. The extrei'nities of the arms of the frame 12 areprovided with horizontal eyes, 22, in which are engaged hooks 23 carriedby brackets 24 secured to the inner sides of the plates 11. The brackets24- comprise a body portion or web 25 suitably apertured for engagementof bolts to hold the bracket to the plates 11, and provided with one arm26 extending at right angles to the plate from its inner side, and asecond arm 27 extending longitudinally from the plate at the same heightas the arm 26. On this account, the brackets are interchangeable fromone to another of the plates 11, without modifying their use. The books28 are so formed that the eyes 22 of the frame 12 can not be easilydislodged therefrom, and the weight of the frame will tend to hold theparts in proper operative relation, as will be readily understood. Theouter ends of the arms 27 are provided with horizontal eyes 28, those ofthe inner end of the plate 11. being coengaged with vertical eyeportions 29 carried on the central draw bar 141. This draw bar and those15 have their extremities offset upwardly, to facilitate the connectionof a swingle tree or the like for ordinary draft connections. The bars15 are longitudinally slotted to allow the eyes 28 to be projectedtherethrough, for free rotation of the round portions of the arms 27 inthe slot, and the engagement of the pin 30 through the eyes outwardly ofthe bar, this pin being se cured in place by a cotter pin in the usualmanner. This construction allows free rotation of the plates foradjustment as will be subsequently described.

Secured centrally on the inner side of the plates there is an upwardlyextending lever 32, having a pin 38 engaged therethrough for insertionin the apertures of the segments 2]. thereadjacent, by means of whichlever the respective plates are adjusted at the inclination desired, andheld so by the segments 21. Each lever 32 has a suitable guide staple 31thereon by which the respective segment 21 is held in proper position.As long as the lever is properly engaged with one of the segments inoperation position, the hooks on the arms 26 can not come to suchposition as to become disen- I gaged from the frame 12, but in the eventthat it is desired to detach the plate from the frame, it is onlynecessary to throw the lever to the inner limit of its movement, whenthe hooks can be readily disengaged from the eyes 22. Thus in the eventthat it is necessary or desirable to arrange both units of the devicewith the plates in aline ment, the plates of one frame are disengagedfrom the frame 12, and the frame itself inverted, so that the long armswill be con nected to those brackets before connected to the short arms.The revoluble mounting of the segments between the angle pieces of theframe permits the segments to be adjusted on the upper side of the framewhen inverted. It will be seen that the forward plates may be set atsuch angle as to perform a chisel function upon the road surface, whilethose at the opposite end are set with a forward inclination from theirengaging edges, so that loosened materials will be spread and forceddownwardly instead of further loosened, or all of the devices may be setat a common angle to the horizontal, to perform like functions.

The device as shown in Fig. 1 is arranged for use upon a narrow road,and the draft connections are so made that loosened materials will beforced toward the center of the road. In the event that it should bedesired, however, the draft connections may be made with the oppositeends of the bars lt and 15, when it will be seen that the loosenedmaterial will be forced to the outer sides of the road. The draftconnections comprise a center element 35, adapted for engagement of aswingle tree in any suitable way, from which extend the links 36 havingat their outer ends the hooks 37 engaged in the respective eyes of theside bars 15. From the rear side of the member 35, there is extended aheavy helical spring 37, carrying a hook 38 engaged in the eye 39 at theforward side of the center bar 14. Bythis arrangement the draft strainis applied evenly throughout the width of the device, and undue strainson the connections obviated.

When the units are connected with their plates in alinement, as shown inFig. 2, the

. outer bar 15 on the rearmost unit is reversed, so that the long end Ais projected forwardly, while the short end B is located at the rear. Inthis way, no matter what the connections of the units the draft barshave their forward ends in alinement, so that no modifications of draftconnections will be required.

What is claimed is:

1. In a drag of the class described, a unit comprising at least frontand rear scraper plates, a frame composed of two angle pieces eachhaving a long and a short arm connected detachably and pivotally torespective plates for inversion of the frame at times, a lever fixed oneach plate, segments carried by the frame in close relation to thelevers concentric with the pivots of the plates, and adjustabledetachable connections'between the levers and the segments.

2. A device of the class described comprising two units each comprisinga front and rear drag plate, longitudinally spaced brackets secured onthe inner sides ofeach plate adjacent each end, each bracket having alongitudinal and a lateral arm provided with horizontal eyes, a centraldraft bar having vertlcal hooks connected with the eyes thereadjacent, aframe having hooks engaged respectively with the eyes of the lateralarms to hold the plates in diagonal relation to the bar, draft barspivotally connected with the longitudinal arms at the outer ends of theplates and draft connections with the bars.

Copies ofthis patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

In testimony whereof I have hereunto set 10 my hand in presence of twosubscribing witnesses.

OTTO C. LUTHER.

Witnesses:

CONRAD MARTIN, P. F. Bmow.

